import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import router from '@/router'
// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['token'] = getToken()

    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data
    if (Number(res.code) !== 2000) {
      /**
       * 支付中
       * 不做任何提示
       */
      if (Number(res.code) === 2500) {
        return res
      } else {
        if (Number(res.code) === 2002) {
          /**
           * 支付失败
           */
          Message({
            message: res.message,
            type: 'error',
            duration: 5 * 1000
          })
        } else if (Number(res.code) === 2003) {
          /**
           * 支付成功!
           */
          Message({
            message: res.message,
            type: 'success',
            duration: 5 * 1000
          })
          return res
        }
      }
    }

    // if the custom code is not 20000, it is judged as an error.
    if ((Number(res.code) !== 2000)) {
      if (Number(res.code)!==2001){
        // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
        if (res.code === 50008 || res.code === 50012 || res.code === 50014 || Number(res.code) === 2005) {
          // to re-login
          MessageBox.confirm('您已退出，您可以取消停留在此页面，或重新登录', '退出确认', {
            confirmButtonText: '重新登录',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => {
            store.dispatch('user/resetToken').then(() => {
              location.reload()
            })
          })
        }
        if (Number(res.code)===2006){
          router.push({path:'/401'})
        }
        return Promise.reject(new Error(res.message || 'Error'))
      }else {
        Message({
          message:res.message,
          type:'error',
          duration:5*1000
        })
      }

    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
